899141960

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{137}}^1\times {\mathrm{3491}}^1$

素因数の和:3686

約数の個数: 64

約数和(自身を含む): 2081790720

約数和(自身を除く): 1182648760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 94, 137, 188, 235, 274, 376, 470, 548, 685, 940, 1096, 1370, 1880, 2740, 3491, 5480, 6439, 6982, 12878, 13964, 17455, 25756, 27928, 32195, 34910, 51512, 64390, 69820, 128780, 139640, 164077, 257560, 328154, 478267, 656308, 820385, 956534, 1312616, 1640770, 1913068, 2391335, 3281540, 3826136, 4782670, 6563080, 9565340, 19130680, 22478549, 44957098, 89914196, 112392745, 179828392, 224785490, 449570980, 899141960]

約数ペア:

[(1, 899141960), (2, 449570980), (4, 224785490), (5, 179828392), (8, 112392745), (10, 89914196), (20, 44957098), (40, 22478549), (47, 19130680), (94, 9565340), (137, 6563080), (188, 4782670), (235, 3826136), (274, 3281540), (376, 2391335), (470, 1913068), (548, 1640770), (685, 1312616), (940, 956534), (1096, 820385), (1370, 656308), (1880, 478267), (2740, 328154), (3491, 257560), (5480, 164077), (6439, 139640), (6982, 128780), (12878, 69820), (13964, 64390), (17455, 51512), (25756, 34910), (27928, 32195)]